Friday
May 24, 2013

# Homework Help: Math: Calculus

Pre Calculus 12
Another sine/cosine question i dont get in vancouver on certain day, high tide is 20m at 2am, the next low tide is 8m at 6am, what an equation that represents height (h)of water at any time (t)since midnight) what is the height of water at 8:45AM? What is height of water at 8:...
Wednesday, January 23, 2013 at 11:32pm

Pre Calculus 12
Modelling with sine/cosine A Ferris wheel has a diameter of 30m. The bottom of the wheel is 1.5m off the ground it takes 3.5min to make one complete revolution. a person gets on ferris wheel at its lowest point at time = 0. write an equation that represents persons height ...
Wednesday, January 23, 2013 at 10:53pm

Pre Calculus 12
The height h, in metres, above the ground of a car as a ferris wheel rotates can be modelled by the function h(t) = 18cos(πt/80) +19 what is the minimum height of a car? do i like subtract 19 from 18 ? what is the maximum height of a car? do i add the 19 to 18? how long ...
Wednesday, January 23, 2013 at 10:47pm

Pre Calculus 12
Graphing trigonometric functions A sinusoidal function has a maximum at (2,10) and its next minimum (5,-2) find an equation that represents this situation A sinuosoidal function has a zero at (5,0) and its next minimum is (7,-4). find an equation that represents this situation...
Wednesday, January 23, 2013 at 10:41pm

Pre Calculus 12
Laws of logarithms evualuat using change of base rule log(√8)16 ^the square root 8 is supposed to be subscript. the answer i got was 8/3, not sure if that is right
Wednesday, January 23, 2013 at 8:41pm

Pre Calculus 12
Solving problems that involve logarithms the sound at a rock concert decreases by 10% for every 5m travvelled. how far does it take for a volume of 2000 decibels to decrease to 20 decibels? i dont know what to do for this one the growth decay formula i got is A = P(X)^t/n I ...
Wednesday, January 23, 2013 at 8:23pm

Pre Calculus 12
Laws of Logarithms Evaluate: without using a calculator, except for the first one. The 5.6 is supposed to be subscript, but i dont know how to make it small. 4log(5.6)84 log84/log5.6 Do I multiply this by four or something? both of the logs?
Wednesday, January 23, 2013 at 8:20pm

Calculus
Find a solution to the equation if possible. Give the answer in exact form and in decimal form. 8=4sin(5x)
Wednesday, January 23, 2013 at 5:52pm

Calculus
Find a solution to the equation if possible. Give the answer in exact form and in decimal form. 8=4sin(5x)
Wednesday, January 23, 2013 at 5:52pm

Calculus
Calculate Directly Log (base 4) 2 + log (base 16) 2
Wednesday, January 23, 2013 at 1:50pm

calculus 2
The region bounded by y=e^(-x^2),y=0 ,x=0 ,x=1 and is revolved about the y-axis. Find the volume of the resulting solid.
Wednesday, January 23, 2013 at 1:18am

Pre-Calculus
Tuesday, January 22, 2013 at 11:09pm

Pre-Calculus
Solve by using the substitution method 1.x=-3y+4 and 3x+9y=12 3(-3y+4)+9y=12 -9y+12+9y12 0=0 x=-3(0)+4 x=4 Would there be infinite solutions or would it be (0,4)? 2. x=3y-1 and 2x-6y=-2 2x-6y=-2 2(3y-1)-6y=-2 6y-2-6y=-2 0=0 x=3y-1 x=3(0)-1 x=-1 Would there be infinite ...
Tuesday, January 22, 2013 at 10:29pm

Pre Calculus 12
I also do not get these inverses questions y = 5(x-3)^3 x = 5(y-33)^3 I divided 5 on both sides and got 1/5x = (y-3)^3 Then do I cube root the 1/5x or something to get rid of of the cubed on (y-3)? Also y = x-2/5x-3
Tuesday, January 22, 2013 at 9:27pm

Pre Calculus 12
Im trying to find the inverse of this: y = 2/3x-4 I got to this step x+4 = 2/3y I need to divide by 2/3 to get rid of 2/3 beside the y, but i dont know how to divide x+4/2/3 that looks complicated :\
Tuesday, January 22, 2013 at 9:18pm

Pre-Calculus
I have to use the substitution method to solve the system of equations. 4x-y=9 and 2x+3y=12 I worked this problem myself and could not find a possible solution. So I put that it is inconsistent. Is that correct? If not could you please help me?
Tuesday, January 22, 2013 at 9:09pm

Pre Calculus 12
Im going over my pre calculus 12 exam, and I need help with one question from the chapter Transformations of graphs and stuff. Combining Transformations 2y = f(5x-10)+8 The original points are (4,6) and the new points I got by translating it and stuff are : (14/5,20) But in ...
Tuesday, January 22, 2013 at 8:18pm

Pre-Calculus
If you solve the following system of equations by substitution, which statement is true? x = z x - 2y + z = 6 2x + y - 2z = 1 A. You can substitute z for x into the second and third equations. B. You can substitute x for z into the second and third equations. C. Both methods ...
Tuesday, January 22, 2013 at 8:01pm

Calculus 2
I'm confused on how to solve or set up a substitute for the problem. Evaluate the Integral from 1/4 to 1. 1/ sqrt(16t^2 -1) dt
Tuesday, January 22, 2013 at 7:58pm

Calculus
Instructions were evaluate the integral. (x/1-x^4) dx I know that this form is the tanh inverse 1/1-x^2 but not sure how to substitute and start this problem. Please Help.
Tuesday, January 22, 2013 at 7:34pm

Calculus
Instructions were evaluate the integral. (x/1-x^4) dx I know that this form is the tanh inverse 1/1-x^2 but not sure how to substitute and start this problem. Please Help.
Tuesday, January 22, 2013 at 7:18pm

Calculus
Find the derivative w/ respect to x: g(x) = ln(sec(x))
Tuesday, January 22, 2013 at 6:30pm

CALCULUS-plz!!!!
Find derivative w/ respect to x: y=x^5/(1-x)ã(x^2+2) (hint: there is an easy way and a hard way!)
Tuesday, January 22, 2013 at 6:29pm

Calculus
Integrate: x/(9+x^4)dx
Tuesday, January 22, 2013 at 6:26pm

calculus 1
Evaluate the limit limit t^4 − 625/t^3 − 125 t → 5
Tuesday, January 22, 2013 at 6:25pm

Pre-Calculus
State the domain and range of the relation y = 2x + 3 My answer: y= 2x+3 y= 2(1)+3=5 domain: 1 range: 5 This is how my book showed me how to do it. I just wanted to make sure I did it right. If not could you please give me an example?
Tuesday, January 22, 2013 at 12:45am

Calculus
Which of the following is the Taylor series of ln(1−2x) about x=0 up to and including the terms of order three? What is order three?
Sunday, January 20, 2013 at 11:58am

calculus
Let f(x)=(2+x)2−4x. Note that f(x) is undefined at x=0. However, in this case, we can find a continuous function g(x) defined at x=0 that agrees with f(x) near x=0. Find the function g(x) that is equal to f(x) when x≠0 such that g(0)=limx→0f(x).
Saturday, January 19, 2013 at 9:25pm

calculus
Let f(x)=x2+x−6x−2. Note that f(x) is undefined at x=2. However, in this case, we can find a continuous function g(x) defined at x=2 that agrees with f(x) near x=2. Find the function g(x) that is equal to f(x) when x≠2 such that g(2)=limx→2f(x).
Saturday, January 19, 2013 at 9:23pm

calculus
limx→∞3x+127x+11
Saturday, January 19, 2013 at 8:52pm

Calculus
Which of the following is the Taylor series of ln(1−2x) about x=0 up to and including the terms of order three?
Saturday, January 19, 2013 at 4:02pm

Chemistry/Calculus
I have a question about how to plug in numbers on my calculator (TI-30XIIS) to get an answer. How would I put in my calculator... ln 1.00X 10-2 mol/L /1.65 X 10-2 mol/L to get-0.501? I keep getting the wrong answer...
Saturday, January 19, 2013 at 2:35pm

Calculus
Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. The diagonal of the square before...
Saturday, January 19, 2013 at 12:34am

Calculus
Which of the following would have a horizontal asymptote of y = b/a? Which one has a horizontal asymptote of y = 0? ( bx^3 - x^2 + 3 ) / ( ax^2 - 2 ) ( bx^3 - x^2 + 3 ) / ( ax^3 - 2 ) ( bx^3 - x^2 + 3 ) / ( ax^4 - 2 ) ( bx^2 / a ) - 6 Please explain! :)
Friday, January 18, 2013 at 10:33am

Pre Calculus 12 urgent
andrew is working on a binomial problem (1/2x-y)^7. He asks u to : i) what the coefficient of the 6th term ii) find the term that has the variabes x^47^3 (ex. 34x^4y^3) iii) find the first three terms of the expansion I really need help with that ^ . I know the powers of A ...
Friday, January 18, 2013 at 10:00am

Calculus 2
A circular plate of radius r feet is submerged vertically in a tank of fluid that weighs w pounds per cubic foot. The center of the circle is k(k>r)feet below the surface of the fluid. Show that the fluid force on the surface of the plate is F=wk(πr^2). How to prove ...
Friday, January 18, 2013 at 7:13am

Pre Calculus 12
Im on the chapter of permutations/combinations/fundamental counting principle need help with 2 questions 1. emma is arranging her books in piles on her desk. she has 5 math books, 3 english books, and 4 science books. how many ways can she arrange them if she wants to keep the...
Friday, January 18, 2013 at 1:30am

AP Calculus
Two ships sail from the same port. The first ship leaves port at 1:00a, and travels eastward at a rate of 15 knots. the second ship leave port at 2:00am and travels northward at a rate of 10 knots. Determine the rate at which the ships are separating at 3:00am
Friday, January 18, 2013 at 1:24am

Calculus 3
Let L be the line that passes through the points (0,1,6) and (0,3,2). Find the length of the projection of k=<0,0,1> on the line L. I know how to do this if one part of the vector k is touching the line, but unless i'm mistaken, that is not the case in this question...
Wednesday, January 16, 2013 at 11:21pm

Calculus 3
Let L be the line that passes through the points (0,1,6) and (0,3,2). Find the length of the projection of k=<0,0,1> on the line L. I know how to do this if one part of the vector k is touching the line, but unless i'm mistaken, that is not the case in this question...
Wednesday, January 16, 2013 at 11:21pm

Calculus 3
Let u=j+k and v=i+jsqrt2. a) Calculate the length of the projection of v in the u direction. b) Calculate the cosine of the angle between u and v. Your help is very much appreciated!
Wednesday, January 16, 2013 at 11:18pm

AP Calculus
Oil leaks out from a damaged oil tanker and forms a circle around the tanker. If the radius of the circle of oil is increasing at 25m/min, find the rate of change of the area when the radius is 20km
Tuesday, January 15, 2013 at 10:56pm

calculus
For what values of z will (2-z)-y = 0 4x+(1+z)y = 0 have an infinite number of solutions.
Tuesday, January 15, 2013 at 10:11pm

calculus
Find the parametric equations for the line that contains the point (3,1,-4) and is parallel to the line r(t)=(1+2t)i+(-3-t)j+(5+5t)k
Tuesday, January 15, 2013 at 8:05pm

Calculus
Use a trig identity to combine two functions into one so you can solve for x. (The solution should be valid for any value of t). 3cos(t) + 3*sqrt(3)*sin(t)=6cos(t-x) I know that 6 cos(t-x) can be 6(cos(t)cosx(x)+sin(t)sin(x)) I dont know where to go from there though.
Tuesday, January 15, 2013 at 2:38pm

calculus
Find parametric equations for the line that is perpendicular to the plane 2x-y+3z=7 and intersects the plane when x=1 and y=1.
Tuesday, January 15, 2013 at 2:14pm

Calculus
In these complex exponential problems, solve for x: 1)e^(i*pi) + 2e^(i*pi/4)=? 2)3+3=3i*sqrt(3)=xe^(i*pi/3) MY attempt: I'm not really sure of what they are asking. For the 1st one I used the e^ix=cos(x)+i*sin(x) and got -1+sqrt(2) +sqrt(2)i 2) I solved for x and fot (3+3i...
Tuesday, January 15, 2013 at 2:08pm

Calculus
For the functions f and g find for f(x)=x^2, g(x)=x+1 a)f(g(1)) b)g(f(1)) c)f(g(x)) d)g(f(x)) e)f(t)g(t)
Tuesday, January 15, 2013 at 8:08am

calculus
A box of rectangular base and an open top has a surface area 600 cm2. If the height of the box is equal to its width, find the dimensions that give a maximum volume.
Monday, January 14, 2013 at 10:20pm

Pre-Calculus
Point B is 12 km north of point A. Point C is 9 km from point B on a bearing of 060°. Find the distance from A to C.
Sunday, January 13, 2013 at 9:49pm

Pre-calculus
Find the correct end behavior for a given polynomial function. 3.36x^4+8x^2+x-9
Sunday, January 13, 2013 at 1:39pm

calculus
A car is traveling at 50 mi/h when the brakes are fully applied, producing a constant deceleration of 26 ft/s2. What is the distance covered before the car comes to a stop? (Round your answer to one decimal place.)
Friday, January 11, 2013 at 8:09pm

Calculus
How do you simplify: 5*e^(-10x) - 3*e^(-20x) = 2 I'm not sure if I can take natural log of both sides to bring down the exponents.
Friday, January 11, 2013 at 1:28am

Pre-Calculus
Driving down Bald Mountain in Wyoming, Bob dean finds that he descends 1600 feet in elevation by the time he is 2.5 miles (horizontally) away from the high point on the mountain road. Find the slope of his descent (Hint: 1 mile = 5280 feet) After converting the miles to feet I...
Thursday, January 10, 2013 at 12:46pm

Calculus
the area of the first quadrant region bounded by the y-axis, the line y=4-x and the graph of y=x-cosx is approximately: a) 4.50 square units, b) 4.54 square units, c) 4.56 square units, d) 4.58 square units, e) 5.00 square units
Wednesday, January 9, 2013 at 9:02pm

Calculus
How do you integrate: 1/(x^2-1) dx ?
Wednesday, January 9, 2013 at 7:48pm

calculus
Change the exponential expression to an equivalent expression. It should involve an a logarithm. 6.5=a^3 This is what I have. can you help me out. Ina[1/3]In6.5
Wednesday, January 9, 2013 at 7:17am

calculus
three forces with magnitudes 100, 50, and 80 lb act on an object at angles of 50 degree, 160 degree, and -20 degree respectively. ind the direction and magnitude o the resultant force.
Tuesday, January 8, 2013 at 11:25pm

Find the functions f&g so that fog =H H(x)=(3x+2)^6 please show work
Tuesday, January 8, 2013 at 10:01pm

calculus
use the properties of logarithms to condense the logarithmic expression. write the expression as a single logarithms whose coeffient is 1. Inx+In5=? Can you show work
Monday, January 7, 2013 at 11:05pm

math/calculus
solve the equation loga(x-5)- loga (x+9)=loga(x-7)-loga(x+9) all a's are lower please show work
Monday, January 7, 2013 at 11:00pm

math/calculus
The function f is defined as follows: f(x)={x+6 if -5 less than or equal to x<1 f(x)={9 if x=1 f(x)={-x+5 if x>1 a. find the domain b. locate any intercepts, if any
Sunday, January 6, 2013 at 8:56pm

math/calculus
when approximating the value of transcendental functions, why are some centers more useful than others?
Sunday, January 6, 2013 at 8:04pm

calculus
solve the inequality e^x+e^x-x=6 can you show work
Sunday, January 6, 2013 at 3:23pm

Calculus
The function f(x) is defined as f(x) = -2(x+2)(x-1)^2 = -2(x^3 -3x + 2) on the open interval (-3,3). 1. Determine the x-coordinate of the absolute minimum of f(x) in the open interval (-3,3). Justify your answer. 2. Find all values of x for which f(x) is concave down. Justify ...
Saturday, January 5, 2013 at 1:42pm

calculus
for 0<=t<=21 the rate of change of the number of black flies on a coastal island at time t days is modeled by R(t)=3sqrt(t)cos(t/3) flies per day. There are 500 flies on the island at the time t=0. To the nearest whole #, what is the max # of flies for 0<=t<=21?
Saturday, January 5, 2013 at 1:22am

calculus
for 0<=t<=21 the rate of change of the number of blakc flies on a coastal island at time t days is modeled by R(t)=3sqrt(t)cos(t/3) flies per day. There are 500 flies on the island at the time t=0. To the nearest whole #, what is the max # of flies for 0<=t<=21?
Friday, January 4, 2013 at 11:51pm

calculus
A forest is burning in a valley. If the fire burns for h hours, the cost of the lost timber is 1000h dollars. They estimate that x firefighters can stop the fire in 3600/x hours. The cost for each firefighter is \$20 (transportation)plus \$25 per hour (salary/ food). A. Let C be...
Friday, January 4, 2013 at 7:21pm

calculus
solve the logarithmic equation. Be sure to reject any value of x that is not in the domain of the orginal logarithmic expression. In square root x+7=1 I get this far and then get stuck, can you help me? In square root x+7=1 e=square root x+7 e^2=x+7 x+7=e^2 x=e^2-7
Friday, January 4, 2013 at 4:11pm

calculus
Let g be the function give by g(x) = x^4 - 4x^3 + 6x^2 – 4x + k where k is constant. A.On what intervals is g increasing? Justify your answer. B.On what interval is g concave upward? Justify your answer. C.Find the value of k for which g has 5 as its relative minimum. ...
Friday, January 4, 2013 at 2:38pm

calculus
A forest is burning in a valley. it is estimated that if the fire burns for h hours, the cost of the lost timber is 1000h dollars. They estimate that x firefighters can stop the fire in 3600/x hours. The cost for each firefighter is \$20 (transportation)plus \$25 per hour (...
Friday, January 4, 2013 at 2:37pm

calculus
A forest is burning in a valley. it is estimated that if the fire burns for h hours, the cost of the lost timber is 1000h dollars. They estimate that x firefighters can stop the fire in 3600/x hours. The cost for each firefighter is \$20 (transportation)plus \$25 per hour (...
Friday, January 4, 2013 at 2:37pm

calculus
A piece of elastic is attached to two nails on a flat board, with a button attached to the midpoint of the elastic. The ails are 5 cm apart. You stretch the elastic by pulling the button along the board i the direction that is perpendicular to the line between the nails. A. ...
Friday, January 4, 2013 at 2:21pm

calculus
A candy company needs a custom box for their truffles. The box they've chose is in the shape of a cylinder with a hemisphere of the same radius on top. The total volume of the box is V= (1/2) ((4pir^2)/(3))+ pir^2 (y-r), where y is the height of the box and r is the radius...
Friday, January 4, 2013 at 2:16pm

calculus
at a certain instant the base of a triangle is 5 inches and is increasing at the rate of 1 inch per minute. At the same instant, the height is 10 inches and is decreasing at the rate of 2.5 inches per minute. Is the area of the triangle increasing or decreasing? justify you ...
Friday, January 4, 2013 at 2:08pm

calculus
consider g(x)= {a sin x + b, if x ≤ 2pi} {x^2 - pi x + 2, if x > 2pi} A. Find the values of a a b such that g(x) is a differentiable function. B. Write the equation of the tangent line to g(x) at x = 2pi. C. Use the tangent line equation from part B to write an ...
Friday, January 4, 2013 at 11:04am

calculus
A particle is moving along the x- axis so that its velocity at any time t ≥0 is give by v(t) = (2 pi - 5)t - sin(pi t) A. Find the acceleration at ay time t. B. Find the minimum acceleration of the particle over the interval [0,3]. C. Find the maximum velocity of the ...
Friday, January 4, 2013 at 10:50am

calculus
The ellipse x^2+3y^3=13, has two points when x+-1 . Find the slope of the ellipse at both these points. 2. Thoroughly explain the method you used to find the slope in part 1. What are the strengths and weaknesses of the method you used? 3. Explain whether your method will work...
Thursday, January 3, 2013 at 10:55pm

Calculus
A colony of bacteria is grown under ideal conditions in a laboratory so that the population increases exponentially with time. At the end of 2 hours, there are 4,800 bacteria. At the end of 4 hours, there are 19,00 bacteria. How many bacteria were present initially?
Thursday, January 3, 2013 at 3:24pm

calculus
integrate the following (3y-7x-3)dx+(7y-3x-7)dy=0
Thursday, January 3, 2013 at 6:23am

calculus
integrate it by integrating factor (cos^3x)dy/dx +ycosx=sinx
Thursday, January 3, 2013 at 6:20am

calculus
solve it by integating factor dy/dx + (x+1/x)y=e^-2x
Thursday, January 3, 2013 at 6:15am

ap calculus
How is the ap calculus AB and BC test? Is there any online practice test?
Wednesday, January 2, 2013 at 8:05pm

Calculus
Assume that an airplane is flying toward you at a constant height, h miles and at a speed dx/dt. When the plane is x miles away, what is the rate of change of theta?
Wednesday, January 2, 2013 at 7:03pm

calculus
Find the midpoint of the line segment joining the points P1 and P2 P1=(-1,5); P2=(2,0) m=(x,y)=? type an ordered pair Please show work
Tuesday, January 1, 2013 at 3:39pm

calculus
Find the distance d(P1,P2)between the points P1 and P2. P1=(-5,2) P2=(2,1) d(P1,P2)=? *all the 1's and 2's are to be lower down.* Please show work
Tuesday, January 1, 2013 at 3:21pm

calculus
for the given functions f and g, find the following and state the domain of each. f(x)=square root x; g(x)=5x-1 a. (f*g)(x)= ? what is the domain of f*g? b. (f/g)(x)=? what is the domain of f/g? please show work
Tuesday, January 1, 2013 at 3:15pm

maths-calculus
mean value theorem prove sq root 9.1 is less than or equal to 3+1/60
Tuesday, January 1, 2013 at 2:05pm

Calculus
Find the extreme value(s) of the function f(x)=1/(1-x^2). I tried, and for the first derivative I got -1/(2*sqrt((1-x^2)^3)). I then found critical values of the function to be -1 and 1. However, the textbook says that the minimum value is 1 at f(0), and I have absolutely no ...
Tuesday, January 1, 2013 at 12:38pm

Calculus
Is this statment true? Please explain. At a relative extrema, f'(x) = 0
Tuesday, January 1, 2013 at 12:29pm

calculus
solve the exponential equation. Express the solution in terms of natural logarithms. e^x=9.2 a. whats the solution in terms of natural logarithms? **is the answer e^9.2 or just e^9 b. type a decimal rounded to 3 decimal places.
Tuesday, January 1, 2013 at 11:53am

calculus
solve the following exponential equation. 5^x=4 a. what is the exact answer? **I think it is In4/In5 b. what is the answer approximated to 3 decimal places.
Tuesday, January 1, 2013 at 11:46am

calculus
solve the following equation. log 1/6 (x^2+x)- log 1/6 (x^2-x)=2 **the 1/6 is lowered on both sides and the (x^2+x) and (x^2-x) should be higher on both sides**
Tuesday, January 1, 2013 at 11:41am

calculus
solve the equation. Inx+In(x+8)=3
Tuesday, January 1, 2013 at 11:37am

calculus
solve the logarithmic equation. Be sure to reject any value of x that is not in the domain. In square root x+7=1 x= ? What is the decimal approximation to the solution? x= ?
Tuesday, January 1, 2013 at 10:18am

calculus
solve the following equation Log1/3(x2+x)-log1/3(x2-x)=2 the 1/3 should be lowered and the (x^2-x) should be higher. Can someone tell me what tools to use to make them like this when posting? x= ?
Tuesday, January 1, 2013 at 9:53am

calculus
solve the equation Inx+In(x+4)=3 x= ?
Tuesday, January 1, 2013 at 9:41am

calculus
solve the following exponential equation. 8^x=3 what is the exact answer? a. x= ? b. there is no solution what is the answer approximated to 3 decimal places? a. x= ? b. there is no solution
Tuesday, January 1, 2013 at 9:17am

calculus
solve the logarithmic equation. be sure to reject any value of x that is not in the domain of the orginal logarithmic expression. In square root x+7=2 what is the exact solution? a.)the solution set is ? b.)there are infinitely many solutions c.)there is no solution
Tuesday, January 1, 2013 at 9:11am

calculus
solve the following exponential equation 9^x=6 I get In6/In9 what is the answer approximated three decimal places?
Tuesday, January 1, 2013 at 2:54am

calculus
solve the following logarithmic equation. Be sure to reject any value of x that is not in the domain of orginal expression. then in the solution set round to two decimals places. Inx=8 I get e^8 But am having a hard time with rounding two decimal places. Can someone help?
Tuesday, January 1, 2013 at 2:46am

calculus
solve the following exponential equation. exact answers only 1-8x 3x ¨i =e *I know that I did not post this correctly but I do not know how to put the 1-8x above the pie symbol and 3x above the e.
Monday, December 31, 2012 at 11:16pm

Calculus
A function has a relative Maximum of (0,0) and a relative minimum of (3,-5). What is the function?
Monday, December 31, 2012 at 2:38pm

calculus
Find the inverse the following function. Find the domain, range, and asymptotes of each. f(x)=In(x+1)+1 Please show work
Monday, December 31, 2012 at 2:07pm

Pre-Calculus
A jet leaves an airport on a bearing of N 77* W and travels for 243 mi. It then turns and continues on a bearing of S 13* W for 104 mi. Find how far the jet is from the airport to 3 decimal places.
Sunday, December 30, 2012 at 8:12pm

Calculus II
Find x and dx using trigonometric substitution of (integral) square root of 4x^2 - 9 divide by x x = 2/3 sec x dx = 2/3 tan x dx Is this right so far?
Sunday, December 30, 2012 at 7:27pm

Calculus II
Integrate using integration by parts (integral) (5-x) e^3x u = 5-x du = -dx dv = e^3x v = 3e^3x I wonder if this is right so far. = uv - (integral) v du = (5-x)(3e^3x) - (integral) (-3e^3x) =(5-x)(3e^3x) + (integral) (3e^3x) = (5-x)(3e^3x) + 9e^3x + C
Sunday, December 30, 2012 at 5:23pm

Calculus
Solve: The posistion of a particle moving along a coordinate line is s=sqrt(5+4t), with s in meters and t in seconds. Find the particle's velocity at t=1 sec. A) 2/3 m/sec B) 4/3 m/sec C) -1/3 m/sec D) 1/6 m/sec Thank you!
Sunday, December 30, 2012 at 6:42am

calculus
use the intermediate value theoremto show that the polynomial function has a zero in the given interval f(x)=x^5-x^4+8x^3-5x^2-14x5;[1.4;1.5] find the value of f (1.4)= find the value of f (1.5)= show work, thanks
Sunday, December 30, 2012 at 6:21am

calculus
information is given about a polynomial f(x) whose coeffiecients are real numbers. Find the remaining zeros of f. degree4, zeros i, 9+i **I am just not getting these coefficients. I know that there has to be an easier way to learn this. Please help!!
Sunday, December 30, 2012 at 5:31am

calculus
Form a polynomial f(x) with real coeffiecients having the given degree and zeros. degree 4, zeros 3, multiplicity 2; 6i f(x)=a() Can someone show how to do this. I have tried and do not have a clue. I am lost!!! So, please show work.
Sunday, December 30, 2012 at 5:21am

find the complete zeros of the polynomial function. Write f in factored form. f(x)=3x^4-10x^3-12x^2+122x-39 **Use the complex zeros to write f in factored form.** f(x)= Please show work
Sunday, December 30, 2012 at 5:18am

I have two questions if someone can PLEASE help. 1.solve the equation in the real number system. x^4+11x^3+24x^2-23x+35=0 **Please show work** 2.Use the remainder theorem to find the remainder. When f(x)is divided by x-3. Then use the factor theorem to determine whether x-3 is...
Sunday, December 30, 2012 at 5:12am

calculus
I have posted this question earlier and had the answer given to me this way. But my teacher needs to know what type of factorization I used and I have tried to figure it out but have NO clue!! This is the question. Solve the following inequality. write your answer in interval ...
Saturday, December 29, 2012 at 10:10pm

calculus
A water heater in the shape of a circular cylinder is standing vertically, resting on one of the round ends. The tank is 60 inches tall and has a volume of 30 gallons. If water is flowing into the tank at the rate of 5 gallons per minute, at what rate is the level of the water...
Thursday, December 27, 2012 at 11:15pm

analyze the graph of the function f(x)=x^2+x-90/x+3 a. what is the domain? I think it is x‚-3 (-‡,-3)(-3‡) b. what is the equation of the vertical asymptote? is it x= -3 c. what is the horizontal asymptotes? none
Thursday, December 27, 2012 at 8:21pm

analyze the graph of the function f(x)=x^2+x-90/x+3 a. what is the domain? I think it is x‚-3 (-‡,-3)(-3‡) b. what is the equation of the vertical asymptote? is it x= -3 c. what is the horizontal asymptotes? none
Thursday, December 27, 2012 at 8:21pm

calculus
solve the inequality algebraically 7x-6 less than or equal to 3x^2 please show work
Thursday, December 27, 2012 at 8:09pm

calculus
solve the following inequality 15x-16 less than or equal to 15/x is the point x=0 included in the solution set of the inquality? are the other finite pointsa of the interval included in the solution set? what is the solution set? please show work
Thursday, December 27, 2012 at 8:02pm

calculus
Solve the equation in the real number system X^4+11x^3+24x^2-23x+35=0 Please show work
Thursday, December 27, 2012 at 7:15pm

calculus
Use the intermediate value theorm to show that the polynomial function has a zero in the given interval f(x)=x^5-x^4+8x^3-5x^2-14x5;[1.4;1.5] find the value of f(1.4) f(1.4)= find the value of f(1.5) f(1.5)=
Thursday, December 27, 2012 at 7:10pm

I have two questions that I don't understand and need help with. 1. information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zerosof f. degree 4, zeros i;9+i 2. form a polynomial f(x) with real coefficients having the given ...
Thursday, December 27, 2012 at 7:07pm

calculus
Find the complex zeros of the polynomial function. Write f in factored form. f(x)=3x^4-10x^3-12x^2+122x-39 Please show wrok, I do not understand how to do this.
Thursday, December 27, 2012 at 7:01pm

Find all zeros of the following polynomial. Write the polynomial in factored form. f(x)=x^3-3x^2+16x-48 I put: x^2(x-3)+16(x=3) (x-3)(x^2+16) For zeros: x-3=0 x=0 **My teacher stated check the equation solution again. What is the value for x and hence what is the zero for the ...
Thursday, December 27, 2012 at 5:08pm

Solve the inequality. x^3+9x^2-108 less than or equal to 0. Then write in interval noation. Please can you show me step by step on how you got the answer. I have tries and I am very confused.
Thursday, December 27, 2012 at 4:50pm

AP calculus
The base of the Great Pyramid at Giza is a square that is 230 m on each side. 1.Find the height of the pyramid, knowing that when a person is standing at the center of its side he measures the angle of elevation of the apex to be 51 degrees with an error of +/- 0.5 degrees. 2...
Thursday, December 27, 2012 at 11:28am

Pre Calculus
mx3-nx2+5x-1 is divided by x-2 the remainder is -39. When divided by x-1 the remainder is 3. What are the values of m and n. Didn't know how to do the superscript for mx3
Wednesday, December 26, 2012 at 8:48pm

Calculus-Regressions
How do you find the best and simplest model given a table of data? I know how to find a specific regression (linear, cubic ect...) but i'm lost when it comes to choosing the best one.
Tuesday, December 25, 2012 at 3:46pm

calculus
can someone please help me find all the zeros of the following polynomial. write the polynomial in factored form. f(x)=x^3-3x^2+16x-48 can you please show all work
Monday, December 24, 2012 at 9:45pm

calculus
solve the following inequality. write your solution in interval notation. x^3+9x^2-108 less than or equal to 0 please show all work
Monday, December 24, 2012 at 9:43pm

Calculus
Use the graph of f(x)=x^2/(x^2-4) to determine on which of the following intervals Rolle's Theorem applies. A) [0, 3] B) [-3, 3] C) [-3/2, 3/2] D) [-2, 2] E) None of these
Sunday, December 23, 2012 at 7:02pm

calculus
usethe intermediate theorem to show that the polynomial function has a zero in the given interval f(x)=18x^4-8x^2+9x-1;[0,3) can you please me how you got the answer
Saturday, December 22, 2012 at 11:32pm

calculus
find the bound on the real zeros of the polynomial function f(x)=x^4+x^3-4x-6 cna you please show me how you got the answer please
Saturday, December 22, 2012 at 11:26pm

calculus
use the rational zeros theorem to find all the real zeros of the polynomial. Use the zeros to factor f over the real numbers. f(x)=2x^3-x^2+2x-1
Saturday, December 22, 2012 at 11:12pm

calculus
use rational zeros theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x)=x^3-8x^2-31x-22 **please show work**
Saturday, December 22, 2012 at 11:08pm

calculus
find the complex zeros of the polynomial function. write f in factored form. f(x)=x^3-10x^2+42x-72 please show work.
Saturday, December 22, 2012 at 10:54pm

calculus
form a polynomial with real coefficients have given degree and zeros. degree 5, zeros 9, -i; 8+i please show work
Saturday, December 22, 2012 at 10:50pm

calculus
find all zeros of the following polynomial. write the polynomial in factored form. f(x)=x^3-3x^2+16x-48
Saturday, December 22, 2012 at 9:07pm

calculus
solve the following inequality. write your solution in interval notation. x^3+9x^2-108 less than or equal to 0
Saturday, December 22, 2012 at 8:44pm

calculus
the graph of y= -1/4/x-2 (1/4 over x-2) can be obtained from the graph of y=|x| by which transformations a. what is the horizontal shift? a. five units to right b. 2 units to right c. 5 units to left d. 2 units to left b. by what factor is the graphstretched or shrunk ...
Saturday, December 22, 2012 at 7:44pm

Calculus
evaluate each limit, if it exists [(2+x)^2 - 16]/ (x-2) what do I do?
Saturday, December 22, 2012 at 6:19pm

calculus
Using the function f(x)=4 - 1/(x+6)^2 A.what is the doamin? b.the range c. the asymptotes
Saturday, December 22, 2012 at 10:11am

Calculus
Find the local linearization of g(x)=sqrt 4x near x=2 use local linearization to estimate g(2.05) is your estimate too high or too low?
Friday, December 21, 2012 at 6:41pm

Calculus
Find dy/dx of 3 sin x cos y = 2 using implicit differentiation.
Friday, December 21, 2012 at 4:05pm

Calculus Help!!
Region R is bounded by the functions f(x) = 2(x-4) + pi, g(x) = cos^-1(x/2 - 3), and the x axis. a. What is the area of the region R? b. Find the volume of the solid generated when region R is rotated about the x axis. c. Find all values c for f(x) and g(x) in the closed ...
Friday, December 21, 2012 at 1:35pm

Calculus
If 0 <= k <= pi/2 and the area of the region in the first quadrant under the graph of y = 2x-sinx from 0 to k is 0.1, then k = (a) 0.444 (b) 0.623 (c) 0.883 (d) 1.062 (e) 1.571
Friday, December 21, 2012 at 1:16pm

Calculus
Suppose that f(x), f'(x), and f''(x) are continuous for all real numbers x, and the f has the following properties. I. f is negative on (-inf, 6) and positive on (6,inf). II. f is increasing on (-inf, 8) and positive on 8, inf). III. f is concave down on (-inf, 10...
Friday, December 21, 2012 at 1:15pm

Calculus
If f(3) = 7 and f'(x) = sin(1+x^2)/(x^3-2x), then f(5) = (a) -16.006 (b) -9.006 (c) -0.008 (d) 6.992 (e) 7.008
Friday, December 21, 2012 at 1:13pm

Calculus
a 5m ladder rests against a vertical wall. The top of the ladder begins sliding down the wall at 2m/sec, while the foot of the ladder moves away from the base of the wall. How fast is the foot of the ladder moving away from the wall at the instant the foot of the ladder is 4m ...
Friday, December 21, 2012 at 12:03pm

ap calculus
f(x)=x^3-2x^2+x and f'(x)=3x^2-4x+1 Find the value(s) of x where f(x) has a horizontal tangent (slope=0)
Friday, December 21, 2012 at 12:54am

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